| 释义 |
petrogenesis Petrol.|pɛtrəˈdʒɛnɪsɪs|
[f. petro- + -genesis. Cf. G. petrogenese (R. Th. Simler Ueber die Petrogenese (1862)); petrogenesis was used by F. Zirkel (Lehrb. der Petrogr. (1866) I. 159).]
(The study of) the formation of rocks, esp. igneous and metamorphic rocks.
1901Q. Jrnl. Geol. Soc. LVII. p. lxv, Hutton was in advance of his time on matters relating to petrogenesis. 1911Geol. Mag. Decade V. VIII. 248 (heading) The fundamental problems of petrogenesis, or the origin of the igneous rocks. 1956Nature 14 Jan. 68/1 He has achieved high distinction for his researches on petrogenesis, notably on rock transformations in the granitic suite. 1960Times 13 Feb. 8/4 Lyell Medal to Dr. Doris Reynolds for her work on the rocks of Northern Ireland and her contributions to petrogenesis. 1971Nature 24 Sept. 260/1 Romey..suggests that theories of lunar petrogenesis are developing too fast. 1977A. Hallam Planet Earth 313 Petrogenesis, an envelope term embracing all aspects and features of the formation of rocks.
Hence ˌpetrogeˈnetic a., -geˈnetically adv.
1911Geol. Mag. Decade V. VIII. 251 Such a conception exists, but we can oppose to it several geological data and petrogenetic considerations. 1950A. K. Wells in F. H. Hatch et al. Petrol. Igneous Rocks (ed. 10) 5 The modern tendency to explain many petrogenetic problems in terms of emanations, ionic migration and ‘granitization’. 1954Jrnl. Geol. LXII. 172 (heading) The trace elements of the plutonic complex of Loch Doon..and their petrogenetic significance. 1970Mineral. Abstr. XXI. 77/1 Petrogenetically it is suggested that a basalt differentiated to produce an olivine-augite peridotite which subsequently assimilated a potassic granite. |